Rob
1846
Agree somewhat and will add first...
Two pieces from the stable of RM.
The 002 and the 009. Why these two? Well the 002 was the first watch from RM that appealed AND made me think as to how the perception of luxury as being simple watches was overturned by RM through the addition/implementation of a shock-proof tourbillon coupled with the torque meter and power reserve functions of Papi into an ultra ergonomic tonneau shaped daily wearer. The vaunted AP CW1 which housed these complications first IIRC was and is just too big as an extended wearer for people with normal wrists. The AP Cabinet pieces which housed these complications didn't visually appeal to me.
The 009 then came along and blew whatever was left of the carnage caused by the 002. It obliterated the notion that luxurious watches needed to have heft on the wrist. Doing away with the torque meter and the power reserve whilst maintaining the tourbillon sent waves onto the watch industry that paved the way for further research/marketing of lighter weighing watches.
Of your original 15, I am in total agreement except for PP 2526 and the Duality, two watches that have no merit for me simply and ONLY because I have not had the good fortune to examine them in the metal and learn about them. Hence the lack of awareness/intellectual appeal on my part. Thank you for bringing them to my scant attention.
The remaining 13 + two RMs mentioned comprise for me THE list, on any grounds.
Well maybe throw in the 5016 topping my list up to 16 watches that appeal intellectually as well as on other grounds. Great post!!

Not 100% sure I get
By: donizetti : October 29th, 2010-12:27
what you mean by "intellectual appeal? nyway, here are some watches that I have "thought about a lot". Maybe those lists will overlap. 1 - Journe Resonance. Tops the list for me 2 - Breguet La Tradition 3 - Many of the works of Oechslin: Trilogyy of time ...
nt
By: nwk00 : October 29th, 2010-12:54
Not sure I understand the guideline actually as some of the watches on your list seem more like well made rather than 'intellectual'. But these appeal to me - Jean Daniel Nicholas tourbillon(seems to be very very well made, more than intellectual. Maybe y...
Most of my watches are :-)
By: KIH : October 29th, 2010-15:46
Seriously, regardless whether I own or not, my picks are, in addition to your list: 1. Credor GCLH999 2. Moser Mayu and Perpetual 1 3. Laurent Ferrieer 4. Patek 3939, 5078 5. AP 15300 or 15202 RO 6. GO Senator Chronometer 7. Lange 1815 MP (the original on...
Opus 1 through 10...
By: pplater : October 29th, 2010-17:17
.... and everything on your list EXCEPT the Dato. Sure, it's a sensational watch and a beautiful, beautiful movement but you'll have to explain what distinguishes the Dato from other well made chronos to elevate it into the ranks of the intellectually wor...
Agree with you pplater
By: DaMctosh : November 1st, 2010-09:46
The Dato is a beautiful movement and fantastic pusher feel, but I'm not sure it's up there with the 13ZN, the Piguet or several Lemanias as a chronograph. On the list, my vote goes to particularly the Gyro (Reverso with the cylindrical hairspring) and the...
Really???... :-)
By: pplater : November 1st, 2010-02:40
Here's a couple you might consider describing as 'theatrical from the get go', Brava - First, another Lange (although this one is from 1902!) - This one ( original completed in 1827) needs no introduction - One more for good measure - Sure, they're all ol...
Think so?
By: Brava : November 1st, 2010-06:25
I beg to differ. I think they are more along the lines of form follows function and if it looks good it is good. I doubt that theatricality was one of the fundamental design parameters when these movements were developed. I strongly suspect, but can't pro...
Central tourbillon...
By: BDLJ : October 29th, 2010-21:47
..intellectual or emotional, Art? Viceral? (!) My take on the question: I don't really perceive watches on much of an intellectual level....it's completely on a financial rewards level. (joke) I'm not sure how to really respond to the OP's question. My en...
Quite Clever of You. . .
By: Douglas : October 30th, 2010-07:47
I would add: 1. Anything by Vianney Halter 2. The MIH watch 3. G&F #1 4. Haldimann H1 and H8 5. Ochs und Junior Anno 50 6. Richard Mille RM 0012 Ah, I now recognize that I could go on and on; I need to refine my 'mental criterion.' Good post, John. Dougla...
Well, I would be less severe than you on the 5196P, CL.
By: amanico : October 31st, 2010-17:36
Even if I totally understand your argument about the too small movement, but we can also argue that a lot of PP watches, and specially one among my favourite, have the same problem. Take, for example, the 5102, the famous Celestial... A 43 mm watch, if I'...
well...I sounded harsh only
By: CL : October 31st, 2010-21:32
because I wanted so much to love that watch It can be such a perfect piece for a modern Calatrava but Patek just fail put to an icon there. If anyone consider a simple 3 handed watch at similar pricing, RIchard Lange and Journe CS easily become a better c...
I totally get your point.
By: amanico : November 1st, 2010-02:45
I, too, when decieved, can be a bit harsh. But, once again, don't you think that the K.V and the Dufour are easier watches to apprehend their ineterest and beauty than the PP 5196 which will deserve more efforts? More " Visual " versus more " intellectual...
Hahaha...
By: CL : November 1st, 2010-06:24
Agree with you that Simplicity and Observatoire are easier watch to comprehend. 5196P and yes the P version , I drooooooooooooooool. So wanted it to accept it and maybe I might Thank you *CL
personally i think
By: mr : November 1st, 2010-07:44
that most complicated watches have a special intellectual appeal, most of the time only those that are well informed in the field of watchmaking (such as ourselves) truly appreciate the high skill and craftsmanship that it takes to make one of these watch...
My late submission
By: schen : November 2nd, 2010-19:37
Sorry for the late reply to this thought provoking thread. Even though being late, I just feel like to add my picks. John you have a nice list, which contains quite a few of my all time favorites - you know what they are, though you won't find all of them...